Considering moving away from tech companies and working for finance/trading...
Hey guys, I've been doing linux sysadmin stuff for around 10 years or so now. These days I do mostly devops and infrastructure engineering. I've been working at mostly tech companies all my life...
View ArticleRHEL/CentOS6 + Serial over Lan with iDRAC
Has anyone gotten this configured? I've found multiple sources all of which are fairly different from each other. The lot of them saying you need to edit grub and the likes but then one recently...
View ArticleWant to learn RHEL, Centos, AWS, Python, Bash, and Puppet/Ansible. Where do I...
I have access to CBT nuggets and pluralsight if that helps. My goal is to become good enough to pass the Linux+ or perhaps the RHCSA to get an entry level/junior Linux admin job. I am currently a...
View ArticleQuestion: How to get consistent UID mapping for Samba4 AD?
Hi there, I have a network currently setup to using Samba4 AD with Likewise as the client's backend. It's been working fine, however; recently I've set up a new server and was told to test out sssd. I...
View ArticleConfusion about hostnames
So I'm playing around with CentOS 7 and I'm using postfix/dovecot, OpenLDAP, MariaDB, BIND, Apache httpd, etc. My problem is that I'm confused about what names to assign to these. My current hostname...
View ArticleDuplication of a RHEL5/CentOS5/OEL5 rpm packages between hosts with two...
I had to do a hardware refresh this weekend and needed to match the binaries from the original host to the new target host version for version and found that the following two lines of CLI did 90% of...
View ArticleDebugging segfault with rsnapshot
Hi, I have been using rsnapshot for years to do backups. A few days ago i realized that the backup job wasn't working anymore. Investigating I found, that rsnapshot segfaults while running. I straced...
View ArticleFor qemu/kvm, is virt-manager the best way to manage VMs?
submitted by obviouslythrowaday [link][12 comments]
View ArticleOEL7, IPA, SSSD, SSH issue
Been trying to figure this out for a week. I recently setup an ipa server as a test. The server setup and install was pretty straight forward. I got the client setup to authenticate and do sudo, etc....
View ArticleBest RHEL 7 exam prep book?
I made the mistake of getting the 6th edition jang prep book, and I noticed when the stuff it was talking about wasn't matching up with my Centos 7 install.Whats the best prep book for the 7th edition...
View ArticleAnybody ever use "Linux Academy"? What do you think about it?
Hey guys I'm talking about this one: https://linuxacademy.com/linux/training/course/name/redhat-certified-system-administratorI can't afford to take the Official RedHat classes and straight reading out...
View ArticleMySQL hangs with nothing in error log
I'm having an issue where my MySQL server (part of a LAMP stack running WordPress) hangs every few hours (giving WordPress a "database connection error").The error log shows nothing other than...
View ArticleHow to start using an LTO6 tape backup drive with LTFS on Ubuntu Server?
I recently purchased a Dell PowerVault LTO-6 tape drive to use with my Dell server running Ubuntu 14.04.3 - I want to set it up so that I can format LTO-6 tapes using LTFS, so that I can see the LTO-6...
View ArticleNeed help with file distribution across dozen servers
The scenario is: servers produce files locally (archives), which then need to be accessible on-demand to all the other servers. This should be done in the fastest way possible. I'm having trouble...
View ArticleI am about to take the LFCE, CentOS 6 or 7?
So I bought the certification exam on 02.12.2014, and I am about to schedule to take it mid-November for the first time. One retake is free if I fail for some reason.I've been dealing mostly with...
View ArticleMemory footprint does not grow with RAM increase
This is on a QNAP TS251 NAS. It originally came with 512MB RAM and has since been upgraded to 8GB RAM in pursuit of better performance. The settings and process manager do indicate that 8GB is...
View ArticleWhich distribution and update strategy for airgapped network?
Interesting job...I like these ones.I got dumped a job with 5 half-dead solaris machines running something written in tcl/tk talking to something on an NFS share (yuck but anyway). The hardware is a...
View ArticleI run a mail server off a VPS, but every email (literally, without fail) I...
edit: forgot to mention this but yes I have set my reverse dns properly. edit 2: set up dkim, tested it (working), still emails are getting spam'd submitted by xereeto [link][75 comments]
View Articleyum-cron runs successfully but no email received
Good day everyone,I have been testing yum-cron on one of my RHEL6 servers and for some reason I am not receiving emails even though the MAILTO variable is set in /etc/sysconfig/yum-cron. I can send and...
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